Many churches do not permit it or would be shocked to even hear of someone writing out a prayer or praying from a prayer book. It's very likely that the Me, Jesus & My Bible folks would be among those who would feel that way.
Oh, I'm sure that there are such folks, but if I'm asked what
I think of it, I can't see any logic in that position or, for that matter, any Biblical reason to adopt it.
For much of evangelicalism, the Christian life is lived within one's heart. There is no connection to the church of the past 2,000 years, or even the church of last week, for that matter. Self-expression is the highest good, so praying "someone elses" prayer flies in the face of that.
Again, if you ask me, I can't agree. I can appreciate why they say what they do, and I CAN accept the general principle, but I can't see that reciting a prepared prayer is automatically insincere. If I read a prayer and put nothing of myself into what it states, then that would be wrong, obviously. If the sentiments expressed are clearly slanted by the author to bring about a phony agreement with some political premise, for instance, that's wrong.
However, almost every prayer that I recite from the prayerbook used in my church reflects my heartfelt and Scripturally-correct sentiments, so to say that there's something wrong--or that I cannot emotionally connect with what I'm saying when reading it--is just arbitrary. And frankly, I think there's a good argument for the OPPOSITE view.
Personally, I grow cold at hearing nothing but awkward, inarticulate, repetitious extemporaneous prayers offered by people on such occasions as grace before meals or at a Bible study group, for instance. They're sincere and I appreciate that, but they don't relate to me very well
By contrast, some of the prayers that I find in a book can be tremendously uplifting and beautiful. And there's no reason to say that the words are not sincerely meant by me when I recite them, not any more than the hymn "Amazing Grace" or the 23rd Psalm--both of which owe to someone else's pen.